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A weather vane initially at rest has a moment of inertia of 0.104 kg · m2 about its axis of rotation. A 28.5 g piece of clay is thrown at the vane and sticks to it at a point 12.5 cm from the axis. The initial velocity of the clay is 21.0 m/s, directed perpendicular to the vane. Find the angular velocity of the weather vane just after it is struck.
After reaching its maximum height, the ball moves into the hoop on its downward path, at 3.05 m above the ground. Using the principle of energy conservation,
question1heather and mathew walk eastward with a speed of 0.76 ms east. if it takes them 50 minutes to walk to a store
Suppose a 76 kg person hangs vertically from a nylon rope. What radius must the rope have if its fractional enhancement in length is to be the similar as that of the spider's thread.
A mass of 0.25 kg is attached to a horizontal spring with a spring constant of 4.0 N/m. Write an expression for the position of the mass as a function of time
You blow some more, and the film detaches to form a complete spherical bubble of radius 3.46 cm, which floats off the wand. What is the net flux through the bubble
questiona baseball is hit with a speed of 30.0 ms at an angle of 43.0 degrees. it lands on the flat roof of a 12 meter
Each driver has a mass of 60.00 kg. Including the drivers, the total vehicle masses are 880 kg for the car and 4080 kg for the truck. The collision time is 0.120s. select coordinates such that the truck is initially moving in the positive x direction..
There is a long smooth slope and we release balls from the top of it every 1.5 s. Suppose the acceleration of the ball is 4.8 m/s2 and every ball is numbered in the releasing order.
You are visiting a pizza parlor and watch the chef make a pizza crust. He throws a spinning disk of dough in the air. Its angular velocity is 15 rad/s. What is the final rotational kinetic energy of the dough
A plastic plano-concave lens has a radius of curvature of 50 cm for its concave surface. what is the power of the lens
An electric dipole consists of 1.50g spheres charged to \pm 2.30nC at the ends of a 6.00cm long massless rod. What is the dipole's angular velocity at the instant it is aligned with the electric field
When jumping, a flea reaches a takeoff speed of 1.2 m/s over a distance of 0.46mm, What is the flea's acceleration during the jump phase and How long does the acceleration phase last
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